Furnace.



PATENTED JULY 4, 1905.

J. KIRBY.

FURNACE.

APPLICATION FILED NOV. 5, 1904.

3 SHEETS-SHEET 1.

PATENTED JULY 4, 1905.

J. KIRBY.

FURNACE.

APPLICATION FILED NOV. 5, 1904.

C711 vcnlot.

Qflilucasea:

5.4 w /L Ja PATENTED JULY 4, 1905.,

J. KIRBY.

FURNACE.

APPLICATION TILED NOV. 5. 1904.

3 SHEETS -SHBET 3 l fter. "793,933. Patented July 4;, 19075..

n fl'ii a'rlns E arnnrr l l tifflhi JOHN KTRBY, Oi? llTllSliURft,PENNSYLVr-iiilrt, ASSlfiFiOlt TO THE hIlPBY FURNACE SMlCL'lTlNCl- ANDltEFlNlNtf- COli'lPANY, Off ,llllllSBUlttf, .PlGNN SYLVANIA, AUORLPORA'llON OF SOUTH DAKOTA.

ii -id l ll tlr fwlfit SPECIFICATION forming part of Letters Patent No.793,938, dated July t, 190". Application filed November 5, 1904. SerialNo. 231,582.

e 5/? "5U (/WI/(lR'I'TI/I The furnaces as contemplated by me are Be itknown that l, JonN limnv, a citizen to be built of material as follows:The me 5 of the Umted dtates of America, residing at smelting hearths eta are to be constructed of llittsburg', in the county of Allegheny andmagnesite brick and magnesia mortar. The

fritate of Pennsylvania, have invented certain bottoms of crucibles 2U28 are to be lined by new and useful improvements in Furnaces, of thesame material. The remaining parts of which the following is aspecification, referthe fi'urnaces arc to be constructed of a suitoncebeing had therein to the accompanying able material such as is connnonlyemployed drawings. in the constructing of furnaces of this type. IO Tinsinvention relates to certain new and Reference will be first had toFigs. 1 and 2 useful improvements in furnaces, and more of the drawings,wherein a double furnace is particularly to that type which is employedshown. lin these views the reference-numer for extracting and refining;metals from copals l and Q designate two compartments of a per ores andall other kinds of ores. double furnace divided by a. wall 2). The I5The invention has for its object the prowall of fire box designated by 33. at a vision of a novel form of furnace in which suitable heighten 3 3the ore-smelting hcarths the raw material or ore is smelted and refinedat i are constructed, each hearth being in- 5 by one and the same fire.I have provided clincd toward the basins f l 11. lietweenparnovel meansby which the heat of said fire, tit'ions 3 3 and the end of eachcompartment 20 taking a downdraft course, is divided. and, I: constructthe grates 5 5, upon which the fire furtherlmn-e, encircles the twoprincipal parts is built adapted to smelt and refine the ores. of myimproved furnace. .l have further pro- The refcrence-numcrals Udesignate the ash- 7 vidod means and so constructed my furnace pits ofthe furnace, which have a suitable that it is a continuous smelter andrefiner. opening 7 '7 communicating therewith. in 5 Another object of myinvention is to prothe side walls of the furnace ll provide the ridenovel means in connection with my furopening 8 8, whereby fuel may beadded to nace for preventing: the dust and lighter parthe fire from timeto time. The side walls ticles which arise from the sn'ielting and rearealso provided with openings if 9, through lining of ores from escapingto the atmoswhich the raw material may be placed upon 3 phcre. thesmelting-hcarths f -:l:. The openings b 8 ln constriiicting my new andimproved furand, 9 9 are provided with suitabledoors l0 l0.

nace .l have employed such features of con- Adjacent to hcarths-tfareconstructed basins struction that the furnace may be built as a 11 ff,which are adapted to receive linings single, a double, or adouble-double furnace. 28 as, which are adapted to collect the molten 35The many advantages of this furnace will be mass as it flows from thehearths 44., and the apparent by the following description, taken moltenmass reaches its state of refinementin in connection with the claims.said basins. The side walls and the basins 5' in the accol'npanying;drawings like numerare provided with openings 12 12, whereby als ofreference desigl'iate corresponding parts the metal and slag may bewithdrawn from 4- throughout the several views, in which time to timeand said walls and the tops of .liigure .l is a lorm'itiiidinalsectional View of basins also to have openings whereby fluxes myimproved furnace in which the refiningmay be added. 'lhefmnacc is alsoprovided 9 crucible is in the rear part of the furnace. with a fine inrearof eachof the basins which Fig. 2 is a transverse sectional viewtaken on extends downwardly to the base of the fur- 4-5 the line m :r ofFig. '1. lfig. 3 is a longitudinal nace and comnniulicates with aph'lrality of lonsectional view of my improved furnace where gitudinalfines 1616. The basinsarc supportconstructed a single furnaceandwherethc ed by brickwork 17, which forms the side refining-crucibleis adjacent to the fire-box. walls of the partitions of the dues in.These longitudinal flues terminate in transverse fines 18 18. At theside of the furnace is constructed a suitable stack or chimney 19, andeach of the transverse fines is connected to said chimney or stack by apipe 20. Vithin the chimney or stack 1 provide a sprinkler whichconsists of an annular pipe 21, having perforations formed upon itsinner lower face, as indicated at 252, and this annular pipecommunicates with the reservoir 23 by a pipe 2 L. The reservoir issupported by standards 25. and this reservoir is located at a sutiicientheight to feed the sprinkler with water or other substance by gravity.

\Ve will assume that the ore is to be treated within the furnace and themetal within said ore to be extracted and refined. The raw material orore is placed upon the smeltinghearth, and the heat generated by thelire in the fire-box will smelt the ores. The molten mass will then passinto the basin, where it is refined. The slag forming at the top of therefined metal is skimmed off from time to time and the metal drawn fromtime to time. The dust and other lighter particles arising from thetreating of the ore will be collected at the base of the chimney orstack by the sprinkler mounted within the chimney or stack.

In Fig. 3 of the drawings I have illustrated my improved furnace as asingle furnace. The same principles of operation hold good in the singleas in the double furnace. The features of construction in Fig. 3 aresomewhat changed. The basin in this drawing is adjacent to the fire-box,while the smelting-hearth is in the rear of the furnace.

I do not wish to be confined in my claims to a furnace constructed asabove described, but also wish my claims to cover a furnace constructedas above described, but placing the basin or basins adjoining thelire-box or lire-boxes and the inclined hearth upon which the ore orother materials are smelted at the farthest end of the furnace from thefire-box or fire-boxesin other words, the furnace as above describedreversed in construction in so far as location of the inclined hearthand basin are concerned.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent. is 1. In furnaces of the type described, thecombination of a fire-box, an ore-smelting hearth, a collecting-basin, aflue extending in the rear of and beneath said basin and in suchjuxtaposition thereto, that the products of combustion passing throughsaid flue will communicate their heat to said basin.

2. A furnace comprisinga tire-box, an orcsmelting hearth locatedadjacent to said tirebox, a collecting-basin constructed below saidhearth and having a top, means for removing the products from saidbasin, and means for conveying the waste products of combustion fromsaid furnace over the top down the rear end and under the bottom of thebasin and in direct contact with the top, the rear wall and the bottomof the basin, substantially as described.

3. In a furnace the combination of a furnace structure comprising sideand end walls and a central partition, of a central flue locatedadjacent the furnace and in alinement with the center thereof, atire-box arranged at each end of the furnace, an inclinedsmelting-hearth arranged adjacent each fire-box, a basin arrangedadjacent each said hearth and a flue extending in the rear of and beloweach basin, said flues extending below the basins and immediatelyadjacent thereto andcommunicating with pipes leading to said centralflue and the said central flue being provided with a water-sprinklermounted therein wherein the products of combustion from both fireboxeswill be subjected to the action of water from saidsprinkler,substantially as described.

In testimony whereof I aiiix my signature in the presence of twowitnesses.

JOHN KIRBY.

itnesses:

E. E. POTTER, K. H. BUTLER.

